Development of the technique embedded into a Monte Carlo transport system for calculation of photonuclear isotope yield

• Autorzy: Nikiforov V. I. , Uvarov V. L.
• Języki publikacji: EN

Abstrakty

EN

The paper describes two methods that use Monte Carlo transport code for computing the photonuclear isotope yield for arbitrary target activation conditions. One of them is based on a direct simulation of new nuclei generation events (DSE method). The other one involves a step-by-step calculation of isotope microyield along the photon trajectories (SBSM method). The techniques have been realized in the computer codes using the PENELOPE package of 2001, 2006 and 2008 versions. The program benchmarking was performed using experimental data on the activity distributions of 67Cu isotope produced in the 68Zn(gamma,p)67Cu reaction in thick zinc targets. Both approaches have shown to give similar results at an appreciably greater speed of the SBSM method. The results of simulation based on the PENELOPE 2006 and 2008 codes are in excellent agreement with all experimental data. At the same time, the PENELOPE 2001 computations give good agreement with the experimental results for target activation by the electron beam, but in the case of target exposed to bremsstrahlung systematic underestimation of about 15% has been observed.

Słowa kluczowe

EN

electron accelerator; bremsstrahlung; photonuclear reaction; Monte Carlo (MC) simulation; isotope yield

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2012
• Tom: Vol. 57, No. 1
• Strony: 75--80
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Nikiforov V. I.

autor

Uvarov V. L.

• "Accelerator" Science and Research Establishment, National Science Center, Kharkov Institute of Physics and Technology (NSC KIPT), 1 Academicheskaya Str., Kharkov, 61108, Ukraine, Tel./Fax: [phone],

Bibliografia

• 1. Adelstein SJ, Manning FJ (eds) (1995) Isotopes for medicine and life sciences. National Academy Press, Washington
• 2. Ayzatskiy NI, Dikiy NP, Dovbnya AN et al. (2008) Features of Cu-67 photonuclear production. Probl Atom Sci Tech, Series: Nucl Phys Invest 3;49:174–178 (in Russian)
• 3. Ayzatskiy NI, Nikiforov VI, Torgovkin AV, Uvarov VL, Shevchenko VA, Ehst D (2008) Comparative analysis of photonuclear isotope generation in the circuits with and without a bremsstrahlung converter. Probl Atom Sci Tech, Series: Nucl Phys Invest 1;47:194–197 (in Russian)
• 4. Bennett RG, Christian JD, Petti DA, Terry WK, Grover SB (1999) A system of 99mTc production based on distributed electron accelerators and thermal separation. Nucl Technol 126:102–121
• 55. Briesmeister JF (2003) MCNP – A general Monte Carlo n-particle transport code. Version 5. Technical Report LA-UR-03-1987, LANL
• 6. Danon Y, Block RC, Testa R, Moore H (2008) Medical isotope production using a 60 MeV linear electron accelerator. NS Trans 98:894–895
• 7. Dikiy NP, Dovbnya AN, Lyashko YuV, Medvedeva EP, Medvedev DV, Uvarov VL (2007) Photonuclear production of 193m,195mPt and synthesis of radioactive cisplatin. J Labelled Compd Radiopharm 50:480–482
• 8. Hubbel IH (1982) Photon mass attenuation and energy-absorption coefficients from 1 keV to 20 MeV. Int J Appl Radiat Isot 33:1269–1290
• 9. IAEA (2000) Handbook of photonuclear data for applications: Cross sections and spectra. IAEA-TECDOC-1178.
• International Atomic Energy Agency, Vienna 10. Kosako K, Oishi K, Nakamura T et al. (2010) Angular distribution of bremsstrahlung from copper and tungsten targets bombarded by 18, 28 and 38 MeV electrons. J Nucl Sci Technol 47:286–294
• 11. Kościelniak S, Bricault P, Davids B et al. (2008) Proposal for a . MW electron linac for rare isotope and materials science. In: Proc of 11th Eur Particle Accelerator Conf, EPAC’08, 23–27 June 2008, Genova, Italy, 1:985–987
• 12.Salvat F, Fernandez-Varea JM, Sempau J (2008) PENELOPE- 2008. A code system for Monte Carlo simulation of electron and photon transport. OECD, NEA, Issy-les-Moulineaux, France